Home JEE Main - Previous Year Papers JEE MAIN 2020 PAPER-5 A particle of mass is revolving around a pl…
JEE Main - Previous Year Papers JEE MAIN 2020 PAPER-5 Single Correct MCQ
Published on: August 22, 2026

A particle of mass is revolving around a planet in a circular orbit of radius . At the instant the particle has velocity , another particle of mass moving at velocity of in same direction collides perfectly in-elastically with the first particle. The new path of the combined body will take is

A
Elliptical
B
Circular
C
Straight Line
D
Spiral

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Text Solution

Verified by Experts
The correct answer is:
A

By conservation of linear momentum

Escape velocity will be at and at velocity less than escape velocity path will be elleptical or part of ellipse except for velocity where path will be circular.

Hence the resultant mass will go on to an elliptical path

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